PURPOSE The retinal blood flow is regulated by the tone of resistance arterioles, which is influenced by purinergic compounds such as adenosine and adenosine 5'-triphosphate (ATP) released from the retinal tissue. However, it is unknown what cellular elements in the perivascular retina are responsible for the effect of purines on the tone of retinal arterioles. METHODS Porcine retinal arterio...

BACKGROUND Syphilitic chorioretinitis can produce severe vision loss. However, the clinical manifestations of syphilitic chorioretinitis are still unclear, particularly during different stages. Herein, we will present our diagnostic technique for syphilitic chorioretinitis. METHODS This retrospective study recruited 109 cases; we performed a clinical evaluation including case history, serolog...

Although cosmetic facial soft tissue fillers are generally safe and effective, improper injections can lead to devastating and irreversible consequences. We represent the first known case of posterior ciliary artery occlusion caused by hyaluronic acid. A 41-year-old female presented with right visual loss 7 hours after receiving cosmetic hyaluronic acid injections into her forehead. Examination...

An otherwise healthy 27-year-old woman presented with complaints of sudden painless blurred vision in the right eye for one week. On examination, visual acuity was 20/30 in the right eye and 20/20 in left eye. Fundus examination OS was normal, but OD demonstrated an elevated, opaque, yellowish parapapillary choroidal lesion with grayish membrane associated with minimal subretinal fluid, suggest...

Sarcoidosis is a multisystem disorder in which ocular involvement occurs in about one-quarter and neurosarcoidosis in 7 per cent of patients. When the retina is involved, the reported incidence of central nervous system sarcoidosis is 37 per cent. The patient described had a transient papular eruption of the legs, bilateral hilar lymphadenopathy, polyarthralgia with knee effusions, and bilatera...

PURPOSE To report a case of choroidal excavation accompanied by Vogt-Koyanagi-Harada disease (VKH). METHODS A 54-year-old Japanese woman who was complaining of bilateral blurring of vision associated with headache underwent optical coherence tomography (OCT), fluorescein angiography, and indocyanine green angiography as well as a routine ophthalmological examination. RESULTS Fundoscopy show...

Purpose To report the swept-source optical coherence tomography angiography (SS-OCTA) findings after bevacizumab anti-vascular endothelial growth factor (anti-VEGF) and full-fluence photodynamic therapy (PDT) for choroidal neovascularization. Design Case report. Methods An 87-year-old, Chinese male presented with a shadow and decreased vision to 20/160 in his left eye (OS). Clinical examina...

To the Editor: A recent article by Chlebicki et al (1) described 4 patients hospitalized for dengue fever who were found to have retinal hemorrhages. These patients reported reduced visual acuity and metamor-phopsia, i.e., distorted visual images attributable to intrinsic retinal disease involving the macula; macular hemorrhages and exudates were found on retinal examination. The authors conclu...

To the Editor: A recent article by Chlebicki et al (1) described 4 patients hospitalized for dengue fever who were found to have retinal hemorrhages. These patients reported reduced visual acuity and metamor-phopsia, i.e., distorted visual images attributable to intrinsic retinal disease involving the macula; macular hemorrhages and exudates were found on retinal examination. The authors conclu...

in this article, the prcsigrnoid avenue to pertroclivai region is introduced and the advantage of such an approach is disusscd. ten patients were operated on by this approach. two illustrative cases are also presented.